Network-Requested Pdp Context Processing - Cisco ASR 5000 Series Administration Manual

GGSN Configuration Example
7. Upon successful authentication, the GGSN assigns an IP address to the MS from one of those stored in its
memory cache.
8. The MS sends/receives data to/from the packet data network over the GGSN‟s PDN interface.
9. Upon termination of the subscriber session, the GGSN sends GGSN charging detail records to the CGF using
GTPP over the Ga interface.

Network-requested PDP Context Processing

The following figure and the text that follows describe how this configuration with a single source and destination
context would be used by the system to process a network-requested PDP context.
Figure 24. Network-requested PDP Context Call Processing
BSS/UTRAN
Context (Ctx.)
Interface
Service or
Configuration (Cfg.)
OL-22944-02
HLR/MAP
CGF
Node
11
4
5
6
9
SGSN
Source
Ctx.
G
a
Net. Req.
PDP Ctx.
G
GGSN-
n
Service
Cisco ASR 5000 Series Gateway GPRS Support Node Administration Guide ▄
AAA Server
2
10
GGSN
Dest. Ctx.
A
Auth.
A
GTPP
Cfg.
A
Cfg.
8
D
DHCP
H
Cfg.
C
3
Cfg.
P
APN
G
Cfg.
i
7
IP Address
Pool Cfg.
How This Configuration Works ▀
DHCP Server
1
Packet Data Network